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Python Tutorials – Lesson 4 –Single LED Control With Single Pushbutton

To check single LED blink using push button

Required Components

  1. LED _ 1 no
  2. 220 Ω Resistor_ 1 no
  3. 10 K Ω Resistor _1 no
  4. Pushbutton _1 no
  5. Bread Board _1 no
  6. Raspberry Pi Pico _1 no
  7. Connecting wires _1 Set

Circuit

Steps

  1. Make sure the components are working properly.
  2. Connect Raspberry Pi Pico board VBus and GND pin to the bread board by using wires.
  3. Connect 220 Ω Resistor to the LED Anode (+) pin and LED cathode (-) pin to Gnd.
  4. Connect 220 Ω Resistor another pin to GP16.
  5. Connect 10 k Ω Resistor to the switch button.
  6. Connect switch button another pin to the Raspberry Pi Pico pin GP17.
  7. When we press the push button LED blinks.
  8. Check the Python program.
  9. Check the circuit connections.
  10. Run the Python program.

Python Program

from machine import Pin
from time import sleep
led_pin = Pin(16, Pin.OUT)    # 16 number in is Output
push_button = Pin(17, Pin.IN)  # 17 number pin is input

while True:
  
  logic_state = push_button.value()
  if logic_state == True:     # if push_button pressed
      led_pin.value(1)             # led will turn ON
  else:                       # if push_button not pressed
      led_pin.value(0)
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Python Tutorials – Lesson 3 – Use A Buzzer Module Using Raspberry Pi Pico

To control Buzzer using Raspberry Pi Pico

Required Components

  1. Buzzer module _ 1 no
  2. Raspberry Pi Pico _ 1 no
  3. Connecting wires _ 1 set

Circuit

Steps

  1. Make sure the components are working properly.
  2. Connect the Raspberry Pi Pico board GP15th pin to the Buzzer.
  3. Connect Buzzer board GND to GND of Raspberry Pi Pico Board.
  4. Check the Electrical Circuit.
  5. Check the Python program.
  6. Run the Python program.

Python Program 

from machine import Pin, PWM
from utime import sleep
buzzer = PWM(Pin(15))

tones = {
"B0": 31,
"C1": 33,
"CS1": 35,
"D1": 37,
"DS1": 39,
"E1": 41,
"F1": 44,
"FS1": 46,
"G1": 49,
"GS1": 52,
"A1": 55,
"AS1": 58,
"B1": 62,
"C2": 65,
"CS2": 69,
"D2": 73,
"DS2": 78,
"E2": 82,
"F2": 87,
"FS2": 93,
"G2": 98,
"GS2": 104,
"A2": 110,
"AS2": 117,
"B2": 123,
"C3": 131,
"CS3": 139,
"D3": 147,
"DS3": 156,
"E3": 165,
"F3": 175,
"FS3": 185,
"G3": 196,
"GS3": 208,
"A3": 220,
"AS3": 233,
"B3": 247,
"C4": 262,
"CS4": 277,
"D4": 294,
"DS4": 311,
"E4": 330,
"F4": 349,
"FS4": 370,
"G4": 392,
"GS4": 415,
"A4": 440,
"AS4": 466,
"B4": 494,
"C5": 523,
"CS5": 554,
"D5": 587,
"DS5": 622,
"E5": 659,
"F5": 698,
"FS5": 740,
"G5": 784,
"GS5": 831,
"A5": 880,
"AS5": 932,
"B5": 988,
"C6": 1047,
"CS6": 1109,
"D6": 1175,
"DS6": 1245,
"E6": 1319,
"F6": 1397,
"FS6": 1480,
"G6": 1568,
"GS6": 1661,
"A6": 1760,
"AS6": 1865,
"B6": 1976,
"C7": 2093,
"CS7": 2217,
"D7": 2349,
"DS7": 2489,
"E7": 2637,
"F7": 2794,
"FS7": 2960,
"G7": 3136,
"GS7": 3322,
"A7": 3520,
"AS7": 3729,
"B7": 3951,
"C8": 4186,
"CS8": 4435,
"D8": 4699,
"DS8": 4978
}

song = ["E5","G5","A5","P","E5","G5","B5","A5","P","E5","G5","A5","P","G5","E5"]
#song = ["G4","A4","C5","F5","D5","F5","G5","F5","D5","C5","A4","C5","D5","F5","G5","G5","G5","A5","G5","G5","F5"]
#song = ["B4","B4","B4","C5","C5","C5","F5","F5","G5","F5","D5","C5","C5","B4"]


def playtone(frequency):
    buzzer.duty_u16(5000)
    buzzer.freq(frequency)

def bequiet():
    buzzer.duty_u16(0)

def playsong(mysong):
    for i in range(len(mysong)):
        if (mysong[i] == "P"):
            bequiet()
        else:
            playtone(tones[mysong[i]])
        sleep(0.3)
    bequiet()
playsong(song)
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Python Tutorials – Lesson 2 – Double led blink using Raspberry Pi Pico

To check double LED blink using Raspberry Pi Pico

Required Components

  1. Led _ 2 no
  2. Raspberry Pi Pico board _ 1 no
  3. Connecting wires _ 1 set

Circuit

Steps

  1. Make sure the components are working properly.
  2. Connect Led GND pins to Raspberry Pi Pico GND pins respectively.
  3. Connect Raspberry Pi Pico GP2, GP20 pins to the each LED anode pin.
  4. Check the Python program.
  5. Check the circuit connections.
  6. Run the Python program.

Python Program

from machine import Pin
import utime  #timer

led1=Pin(2,Pin.OUT)
led2=Pin(17,Pin.OUT)

while(True):    
    led1.value(1)
    led2.value(1)
    utime.sleep(2) #delay of 1 sec
    led1.value(0)
    led2.value(0)
    utime.sleep(2)
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Python Tutorials – Lesson 1 – Single LED Blink Using Raspberry Pi Pico

To check single LED blink using Raspberry Pi Pico

Required Components

  1. Led _1 no
  2. Resister 330Ω _1 no
  3. Raspberry Pi Pico board _1 no
  4. Connecting wires _1 set

Circuit

Steps

  1. Make sure the components are working properly.
  2. Connect 330 Ω Resistor to the LED Anode (+) pin and LED cathode (-) pin to Gnd.
  3. Connect Raspberry Pi Pico pin 28 to the LED anode pin.
  4. Check the Python program.
  5. Check the circuit connections.
  6. Run the Python program.

Python Program 

from machine import Pin
import utime  #timer

led1=Pin(2,Pin.OUT)

while(True):    
    led1.value(1)
    utime.sleep(2) #delay of 1 sec
    led1.value(0)
    utime.sleep(2)